Results 141 to 150 of about 5,642,826 (267)

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Fair and scalable energy-efficient rate splitting multiple access in cognitive high altitude platform networks. [PDF]

Sci Rep
Alhashmi AA, Alshammari AB, Abdullah M, Alghawli ASA, Alkhaldi TM, Ebad SA, Alharbi KNR, Darem AA.   +7 more
europepmc   +1 more source

Throughput fairness trade-offs for downlink non-orthogonal multiple access systems in 5G networks. [PDF]

Heliyon, 2022
Abuajwa O, Bin Roslee M, Binti Yusoff Z, Lee LC, Pang WL.   +4 more
europepmc   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Airborne-Platform-Assisted Transmission and Control Separation for Multiple Access in Integrated Satellite-Terrestrial Networks. [PDF]

Sensors (Basel)
Huang C, Ma X, Xin X, Han W, Dong Y.
europepmc   +1 more source

Group-Connected Impedance Network of RIS-Assisted Rate-Splitting Multiple Access in MU-MIMO Wireless Communication Systems. [PDF]

Sensors (Basel), 2023
Kim MA, Yoo SG, Kim HD, Shin KH, You YH, Song HK.   +5 more
europepmc   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Covert communication performance evaluation in UAV-assisted rate-splitting multiple access systems. [PDF]

PLoS One
Nhu NH, Bao LC, Minh BV, Tran M, Sang NQ.   +4 more
europepmc   +1 more source

Spectrum Slicing for Multiple Access Channels with Heterogeneous Services. [PDF]

Entropy (Basel), 2021
Chiariotti F, Leyva-Mayorga I, Stefanović Č, Kalør AE, Popovski P.   +4 more
europepmc   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source